Estimated potential recovery from the taxing authority.

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- Definition

The number of shareholders filing an appeal of the decision approving the settlement.

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No definition available.

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- Definition

Loss Contingency, Number of States

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No definition available.

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- Definition

Period after the expiration of deferral-of-prosecution period, during which a dismissal of the prosecution can occur.

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Term of the deferral-of-prosecution period.

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- Definition

Motors Liquidation Company GUC Trust, Amounts of General Unsecured Claims, Amount

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- Definition

Motors Liquidation Company GUC Trust, Amounts of Material Contingent Liabilities Remaining, Shares Issuable

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No definition available.

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- Definition

Motors Liquidation Company GUC Trust, Amounts of Material Contingent Liabilities Remaining, Value of Shares Issuable

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- Definition

Motors Liquidation Company GUC Trust, Material Contingent Liabilities, General Unsecured Claims, Threshold Amount

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- Definition

Number of employee involved in the case related to which supreme court rendered its decision.

+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248

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- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

+ References

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Number of claims dismissed.

+ References

No definition available.

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- Definition

Amount of damages paid to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

No definition available.

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- Definition

Number of pending claims pertaining to a loss contingency.

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- Definition

The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 05
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6395354&loc=d3e12631-108344

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Commitments and Contingencies Litigation-Related Liability and Tax Administrative Matters (Details)	1 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2015 USD ($)	Jun. 30, 2018 USD ($) action case shares	Jun. 30, 2018 USD ($) action case employee shareholder shares	Dec. 31, 2016 USD ($)	Jul. 13, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) state	Aug. 31, 2017 state
Loss Contingencies [Line Items]
Maximum liability, guarantees		$ 5,500,000,000	$ 5,500,000,000				$ 5,100,000,000
Indirect Tax Matters [Member]
Loss Contingencies [Line Items]
Estimate of possible loss		1,000,000,000	$ 1,000,000,000
Texas state (MDL) [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of additional bellwether trials \| case			2
Brazil [Member] \| Foreign Tax Authority [Member]
Loss Contingencies [Line Items]
Estimated potential recovery		$ 1,200,000,000	$ 1,200,000,000
Ignition Switch Recall Litigations - Economic-loss cases [Member]
Loss Contingencies [Line Items]
Number of pending claims \| action		100	100
Ignition Switch Recall Litigations - July 2009 Sale Order [Member]
Loss Contingencies [Line Items]
Number of states \| state								16
Ignition Switch Recall Litigations - July 2009 Sale Order [Member] \| Granted Motion to Dismiss [Member]
Loss Contingencies [Line Items]
Number of states \| state								7
Ignition Switch Recall Litigations - July 2009 Sale Order [Member] \| Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of states \| state							8	9
Ignition Switch Recall Litigations - Shareholder Class Action [Member]
Loss Contingencies [Line Items]
Litigation settlement amount				$ 300,000,000
Number of shareholders filing an appeal \| shareholder			1
Ignition Switch Recall Litigations - Shareholder Derivative Action [Member]
Loss Contingencies [Line Items]
Number of claims dismissed \| case		4
Ignition Switch Recall Litigations - Investigation by the Office [Member]
Loss Contingencies [Line Items]
Damages paid	$ 900,000,000
Prosecution deferral period	3 years
Period after the expiration of the period of deferral	30 days
Korea Wage Litigation - Hourly [Member]
Loss Contingencies [Line Items]
Number of plaintiffs \| employee			10,000
Number of employees in the case \| employee			5
Estimate of possible loss		$ 570,000,000	$ 570,000,000
Korea Wage Litigation - Salaried [Member]
Loss Contingencies [Line Items]
Estimate of possible loss		160,000,000	160,000,000
Korea Wage Litigation - Former Subcontract Workers [Member]
Loss Contingencies [Line Items]
Estimate of possible loss		150,000,000	150,000,000
Accrued liabilities and Other liabilities [Member]
Loss Contingencies [Line Items]
Estimated litigation liability		932,000,000	932,000,000				$ 930,000,000
Amended and Restated Master Sale and Purchase Agreement [Member] \| Ignition Switch Recall Litigations - Contingently Issuable Shares [Member]
Loss Contingencies [Line Items]
Allowed general unsecured claims amount		$ 35,000,000,000.0	$ 35,000,000,000.0
Contingently issuable shares (in shares) \| shares		30,000,000	30,000,000
Amount of allowed general unsecured claims						$ 31,900,000,000
Amended and Restated Master Sale and Purchase Agreement [Member] \| Ignition Switch Recall Litigations - Contingently Issuable Shares [Member] \| Subsequent Event [Member]
Loss Contingencies [Line Items]
Value of contingently issuable shares					$ 1,200,000,000